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Tire size · 16-inch wheel · about 30.1x10.0R16

255/70R16 tire size

Overall diameter, nominal30.1 in

Estimate ±763 mm

A 255/70R16 tire is 30.1 in (763 mm) tall and 10.0 in (255 mm) wide on a 16-inch wheel, with a 7.0 in sidewall, and turns about 671 times a mile.

Stock on the Ford Bronco (2021–2023 and 2025–2026), Ford Ranger (2019–2023) and Mazda BT-50 (2017–2020), per their makers’ documents.

Width
10.0 in
Sidewall
7.0 in
Wheel
16 in
Revs per mile
671

01 / Dimensions

255/70R16 in inches and millimeters

What the size code works out to. A real tire of the size measures within about 1.5% of it, by brand, tread, wheel width and pressure.

255/70R16

Estimate ±
Overall diameter
30.1 in 763 mm29.6 to 30.5 in for real tires
Section width
10.0 in 255 mm
Sidewall height
7.0 in 179 mm
Wheel diameter
16 in 406 mm
Circumference
94.4 in 2,398 mm
Revolutions per mile
671 417 per km661 to 681

02 / Stock on

Vehicles that leave the factory on 255/70R16

Which configurations run it in which model years, printed the way each maker prints the size, and how it compares with the vehicle’s other stock sizes. A speedometer set for one of those reads off by the amount shown when you fit 255/70R16 instead.

  • Ford BroncoMaker
    • 2025–2026 · Baseprinted 255/70R16
    • 2023 · Baseprinted P255/70R16
    • 2021–2022 · Baseprinted 255/70R16

    Ford Bronco model years on 255/70R16:

    Its other stock sizes

    • 37x12.50R17 (2022–2023 and 2025–2026 · Raptor). 255/70R16 is 6.9 in shorter: with a speedometer set for 37x12.50R17 it reads 23.1% high, 48.7 mph at an indicated 60.
    • 315/70R17 (2021–2023 and 2025–2026 · Heritage Edition, Stroppe Edition; Base, Outer Banks, Badlands with the Sasquatch Package (765); Big Bend with the Black Diamond Package (51D) + Sasquatch Package (765)). 255/70R16 is 4.3 in shorter: with a speedometer set for 315/70R17 it reads 14.3% high, 52.5 mph at an indicated 60.
    • 285/70R17 (2021–2023 and 2025–2026 · Badlands). 255/70R16 is 2.7 in shorter: with a speedometer set for 285/70R17 it reads 8.8% high, 55.1 mph at an indicated 60.
    • 255/75R17 (2021–2023 and 2025–2026 · Big Bend). 255/70R16 is 2.0 in shorter: with a speedometer set for 255/75R17 it reads 6.7% high, 56.2 mph at an indicated 60.
    • 255/70R18 (2021–2023 and 2025–2026 · Outer Banks). 255/70R16 is 2.0 in shorter: with a speedometer set for 255/70R18 it reads 6.7% high, 56.3 mph at an indicated 60.
    • 265/70R17 (2021–2023 and 2025–2026 · Big Bend with the Black Diamond Package (51D), Free Wheeling Package (51F) or Black Appearance Package (51E); Outer Banks with the Black Appearance Package (51E)). 255/70R16 is 1.6 in shorter: with a speedometer set for 265/70R17 it reads 5.2% high, 57.1 mph at an indicated 60.
  • Ford RangerMaker
    • 2022–2023 · Series not specifiedprinted 255/70R16
    • 2019–2021 · XLprinted 255/70R16

    Ford Ranger model years on 255/70R16:

    Its other stock sizes

    • 265/70R17 (2021–2023 · Series not specified SuperCrew 4x4 with the Tremor Off-Road Package (91T), with a package). 255/70R16 is 1.6 in shorter: with a speedometer set for 265/70R17 it reads 5.2% high, 57.1 mph at an indicated 60.
    • 265/60R18 (2019–2021 · Lariat 4x2; Lariat 4x4). 255/70R16 is 0.5 in shorter: with a speedometer set for 265/60R18 it reads 1.5% high, 59.1 mph at an indicated 60.
    • 255/65R17 (2019–2021 · XLT 4x2; XLT 4x4). 255/70R16 is the same height as 255/65R17, so a speedometer set for it reads true.
  • Mazda BT-50Maker
    • 2017–2020 · Australia · XT Chassis 4x2 Hi-Rider/4x4; XT Dual Cab Utilityprinted 255/70R16

    Mazda BT-50 model years on 255/70R16:

    Its other stock sizes

    • 265/65R17 (2017–2020 · XTR, GT). 255/70R16 is 0.5 in shorter: with a speedometer set for 265/65R17 it reads 1.7% high, 59.0 mph at an indicated 60.
    • 215/70R16 (2017–2020 · XT Single Cab 2.2L 4-cylinder turbo-diesel 6-speed manual). 255/70R16 is 2.2 in taller: with a speedometer set for 215/70R16 it reads 7.3% low, 64.7 mph at an indicated 60.

Documents last checked . How we read them and what the marks mean: how we source the numbers. A figure doesn’t match its document? Report a wrong number.

03 / Nearby sizes

Sizes either side of 255/70R16

The nearest common upsizes and the next sizes down on the same wheel, from the stock sizes we cover and the sizes owners usually step up to, and sizes about as tall on another wheel.

Nearest sizes up

Nearest sizes up, compared with 255/70R16
SizeTallinHeightvs 255/70R16Widthvs 255/70R16At an indicated 60true mphCompare
245/75R1630.5+0.4 in−0.4 in60.859.9 to 61.7Compare →
265/70R1630.6+0.6 in+0.4 in61.160.2 to 62.0Compare →
265/75R1631.6+1.6 in+0.4 in63.262.2 to 64.1Compare →

Next sizes down

Next sizes down, compared with 255/70R16
SizeTallinHeightvs 255/70R16Widthvs 255/70R16At an indicated 60true mphCompare
245/70R1629.5−0.6 in−0.4 in58.958.0 to 59.8Compare →
225/75R1629.3−0.8 in−1.2 in58.557.6 to 59.3Compare →

About as tall, other wheels

About as tall, other wheels, compared with 255/70R16
SizeTallinHeightvs 255/70R16Widthvs 255/70R16At an indicated 60true mphCompare
255/65R1730.1±0.0 in±0.0 in60.059.1 to 60.9Compare →
255/60R1830.0±0.0 in±0.0 in60.059.1 to 60.9Compare →
255/55R1930.0±0.0 in±0.0 in60.059.1 to 60.9Compare →
255/50R2030.0±0.0 in±0.0 in60.059.1 to 60.9Compare →

04 / Next

Compare it with your size

Tire size calculator255/70R16 against 245/75R16, or any two sizes: height, speedometer and gearing.Compare sizesTire sizes by vehicleEvery stock size on the trucks and SUVs we cover.Browse sizesFord Bronco tiresStock tires and wheels by trim, and what bigger tires change on the Ford Bronco.See the tiresFord Ranger tiresStock tires and wheels by trim, and what bigger tires change on the Ford Ranger.See the tires

05 / FAQ

Questions people ask

What is 255/70R16 in inches?

About 30.1x10.0R16: 30.1 in tall and 10.0 in wide on a 16-inch wheel.

Which vehicles come with 255/70R16 tires?

In our data: Ford Bronco (2021–2023 and 2025–2026), Ford Ranger (2019–2023) and Mazda BT-50 (2017–2020).

How does 255/70R16 compare with the Ford Bronco’s other stock sizes?

255/70R16 is 6.9 in shorter: with a speedometer set for 37x12.50R17 it reads 23.1% high, 48.7 mph at an indicated 60. 255/70R16 is 4.3 in shorter: with a speedometer set for 315/70R17 it reads 14.3% high, 52.5 mph at an indicated 60. 255/70R16 is 2.7 in shorter: with a speedometer set for 285/70R17 it reads 8.8% high, 55.1 mph at an indicated 60.

What is the next size up from 255/70R16?

245/75R16: about 0.4 in taller and 0.4 in narrower. On a speedometer set for 255/70R16 it reads 1.4% low (60.8 mph at an indicated 60).